Inter.ttf 🔗
feat: generate invoices
Maas Lalani created
Change summary
Inter.ttf | 0
README.md | 33 ++++++++++++++-
currency.go | 12 +++++
go.mod | 12 +++++
go.sum | 17 ++++++++
invoice.pdf | 0
main.go | 113 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
7 files changed, 181 insertions(+), 6 deletions(-)
Detailed changes
README.md 🔗
@@ -1,14 +1,21 @@
# Invoice
-<sub><sub>z</sub></sub><sub>z</sub>z
-
Generate invoices from the command line.
+## Text-based User Interface
+
```bash
+invoice
+```
+
+## Command Line Interface
+
+```bash
+# Generate an invoice from information.
invoice generate --title "Invoice" \
--id 2 \
--logo ./images/logo.png \
- --from "LaLaLabs, Inc." \
+ --from "Dream, Inc." \
--to "Imagine, Inc." \
--date "June 10, 2023" \
--due "June 30, 2023" \
@@ -21,6 +28,25 @@ invoice generate --title "Invoice" \
--notes "For debugging purposes."
```
+Save repeated information with environment variables:
+
+```bash
+export INVOICE_LOGO=/path/to/image.png
+export INVOICE_FROM="Dream, Inc."
+export INVOICE_TO="Imagine, Inc."
+export INVOICE_TAX=0.13
+export INVOICE_RATE=25
+```
+
+Generate new invoice:
+
+```bash
+invoice generate \
+ --item "Yellow Rubber Duck" --quantity 5 \
+ --item "Special Edition Plaid Rubber Duck" --quantity 1 \
+ --notes "For debugging purposes."
+```
+
## Installation
<!--
@@ -48,7 +74,6 @@ go install github.com/maaslalani/invoice@main
Or download a binary from the [releases](https://github.com/maaslalani/invoice/releases).
-
## License
[MIT](https://github.com/maaslalani/invoice/blob/master/LICENSE)
currency.go 🔗
@@ -0,0 +1,12 @@
+package main
+
+var currencySymbols = map[string]string{
+ "USD": "$",
+ "EUR": "€",
+ "GBP": "£",
+ "JPY": "¥",
+ "CNY": "¥",
+ "INR": "₹",
+ "RUB": "₽",
+ "KRW": "₩",
+}
go.mod 🔗
@@ -1,3 +1,15 @@
module github.com/maaslalani/invoice
go 1.19
+
+require (
+ github.com/signintech/gopdf v0.17.1
+ github.com/spf13/cobra v1.7.0
+)
+
+require (
+ github.com/inconshreveable/mousetrap v1.1.0 // indirect
+ github.com/phpdave11/gofpdi v1.0.14-0.20211212211723-1f10f9844311 // indirect
+ github.com/pkg/errors v0.9.1 // indirect
+ github.com/spf13/pflag v1.0.5 // indirect
+)
go.sum 🔗
@@ -0,0 +1,17 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/phpdave11/gofpdi v1.0.14-0.20211212211723-1f10f9844311 h1:zyWXQ6vu27ETMpYsEMAsisQ+GqJ4e1TPvSNfdOPF0no=
+github.com/phpdave11/gofpdi v1.0.14-0.20211212211723-1f10f9844311/go.mod h1:vBmVV0Do6hSBHC8uKUQ71JGW+ZGQq74llk/7bXwjDoI=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/signintech/gopdf v0.17.1 h1:7g1JCz5XtdyARU3DmGcsyO/eRWM5C2KXGFQ/9+pUCOM=
+github.com/signintech/gopdf v0.17.1/go.mod h1:wrLtZoWaRNrS4hphED0oflFoa6IWkOu6M3nJjm4VbO4=
+github.com/spf13/cobra v1.7.0 h1:hyqWnYt1ZQShIddO5kBpj3vu05/++x6tJ6dg8EC572I=
+github.com/spf13/cobra v1.7.0/go.mod h1:uLxZILRyS/50WlhOIKD7W6V5bgeIt+4sICxh6uRMrb0=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
invoice.pdf 🔗
main.go 🔗
@@ -1,7 +1,116 @@
package main
-import "fmt"
+import (
+ _ "embed"
+ "flag"
+ "log"
+ "time"
+
+ "github.com/signintech/gopdf"
+ "github.com/spf13/cobra"
+)
+
+//go:embed Inter.ttf
+var interFont []byte
+
+var (
+ id string
+ title string
+
+ logo string
+ from string
+ to string
+ date string
+ due string
+
+ items []string
+ quantities []int
+ rates []float64
+
+ tax float64
+ discount float64
+ currency string
+
+ note string
+ output string
+)
+
+func init() {
+ generateCmd.Flags().StringVar(&id, "id", time.Now().Format("20060102"), "ID")
+ generateCmd.Flags().StringVar(&title, "title", "INVOICE", "Title")
+
+ generateCmd.Flags().Float64SliceVarP(&rates, "rate", "r", []float64{25}, "Rates")
+ generateCmd.Flags().IntSliceVarP(&quantities, "quantity", "q", []int{2}, "Quantities")
+ generateCmd.Flags().StringSliceVarP(&items, "item", "i", []string{"Paper Cranes"}, "Items")
+
+ generateCmd.Flags().StringVarP(&logo, "logo", "l", "", "Company logo")
+ generateCmd.Flags().StringVarP(&from, "from", "f", "Project Folded, Inc.", "Issuing company")
+ generateCmd.Flags().StringVarP(&to, "to", "t", "Untitled Corporation, Inc.", "Recipient company")
+ generateCmd.Flags().StringVar(&date, "date", time.Now().Format("Jan 02, 2006"), "Date")
+ generateCmd.Flags().StringVar(&due, "due", time.Now().AddDate(0, 0, 14).Format("Jan 02, 2006"), "Payment due date")
+
+ generateCmd.Flags().Float64Var(&tax, "tax", 0.13, "Tax")
+ generateCmd.Flags().Float64VarP(&discount, "discount", "d", 0.0, "Discount")
+ generateCmd.Flags().StringVarP(¤cy, "currency", "c", "USD", "Currency")
+
+ generateCmd.Flags().StringVarP(¬e, "note", "n", "For debugging purposes.", "Note")
+ generateCmd.Flags().StringVarP(&output, "output", "o", "invoice.pdf", "Output file (.pdf)")
+
+ flag.Parse()
+}
+
+var rootCmd = &cobra.Command{
+ Use: "invoice",
+ Short: "Invoice generates invoices from the command line.",
+ Long: `Invoice generates invoices from the command line.`,
+}
+
+var generateCmd = &cobra.Command{
+ Use: "generate",
+ Short: "Generate an invoice",
+ Long: `Generate an invoice`,
+ RunE: func(cmd *cobra.Command, args []string) error {
+ pdf := gopdf.GoPdf{}
+ pdf.Start(gopdf.Config{
+ PageSize: *gopdf.PageSizeA4,
+ })
+ pdf.SetMargins(40, 40, 40, 40)
+ pdf.AddPage()
+ err := pdf.AddTTFFontData("Inter", interFont)
+ if err != nil {
+ return err
+ }
+
+ writeLogo(&pdf, logo, from)
+ writeTitle(&pdf, title, id)
+ writeBillTo(&pdf, to)
+ writeHeaderRow(&pdf)
+ subtotal := 0.0
+ for i := range items {
+ q := 1
+ if len(quantities) > i {
+ q = quantities[i]
+ }
+
+ r := 0.0
+ if len(rates) > i {
+ r = rates[i]
+ }
+
+ writeRow(&pdf, items[i], q, r)
+ subtotal += float64(q) * r
+ }
+ writeNotes(&pdf, note)
+ writeTotals(&pdf, subtotal, subtotal*tax, subtotal*discount)
+ writeFooter(&pdf, id)
+ return pdf.WritePdf(output)
+ },
+}
func main() {
- fmt.Println("Hello")
+ rootCmd.AddCommand(generateCmd)
+ err := rootCmd.Execute()
+ if err != nil {
+ log.Fatal(err)
+ }
}